Boiler-feeder



(No Model.)

P. J. KELLY. BOIL-BR FEEDER.

Patented Sept. 16, v1890.

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mg noms PE1-ans cu., moro-umu., msnmc UNITED STATES PATENT OEEICE.

PETER J. KELLY, OF AUBURN, NEV YORK.

Bonera-FEEDER.

SPECIFICATION forming part of Letters Patent No. 436,564, datedSeptember 16, 1890..

Application iiled January 27, 1890- Serial Ilo. 338,302. (No model.)

To all whom t may concern: l

Be it known that I, PETER J. KELLY, a citizen of the United States,residing` at Auburn, in the county of Cayuga4 and State of New York,have invented certain new and useful Improvements in Boiler-Feeders, ofwhich the following is a specification, reference being had therein tothe accompanying drawing.

This invention relates to certain new and useful improvements inbolerfeeders designed for use in regulating the feed of water tosteam-boilers, either high or low pressure water-supply, from a tank orfrom a city wa ter-supply, and either with or without the use of a pump.It is designed more particularly as an improvement upon the device shownand described in my application, Serial No. 316,682, iiled July 6, 1889.

It has for its object, among other things, to simplify and cheapen thedevice and to pro- Y vide for the ready draining of the float whenoccasion may require.

Other objects and advantages of the invention will appear in thefollowing description, and the novel features thereof will beparticularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawing, which,with the letters of reference marked thereon, form a part of thisspecification, and in which is shown a central vertical section of aregulator constructed in accordance with my invention.

Referring to the drawing by letter, A A are two castings substantiallyhemispherical, or rather each a little more than a hemisphere, so as toform an elongated chamber, as shown.

` These castings have flanges a a', through which are passed the boltsa2, provided with suitable nuts serving to bind the sections or castingstogether, any suitable packing being introduced to render the jointssteam and water tight. These castings are formed with suitableinternally-threaded bosses or necks c3 for connect-ion with the pipeshereinafter described. d4 ai represent pipes connected to two of thesenecks or bosses and leading through the upper and lower sections of thechamber or receptacle formed bythe castings A A', respectively, to thewater-glass a to indicate Vthe water-line within the sphere or chamber.A drip-cock colis provided for drainwhich is screw-threaded into theboss d3 at the top of the section A. The horizontal branch B2 of thiscoupling is internally threaded, as shown, and is designed to receive apipe connecting it with the pump. (Not shown.) The upper verticalextension of this coupling has connected therewith a nipple or pipe B3,the lower end of which is concaved to form a curved seat B4 for thevalve hereinafter described. This nipple is designed to be connectedwith the boiler-that is, with the dome thereofto conduct dry live steaminto the coupling.

C is a float, and C its stem or rod, which extends upward through thecoupling B and is provided with two valves C2 and C3, the lower one C2of which tinds a seat against the under side of the diaphragm B5 withinthe coupling B, the other or upper valve C3 finding its sea-t in onedirection against the upper edge of said diaphragm and in the upperdirection against the concave seat B1t of the nipple B3, abovedescribed. The upper face of the valve C3 is con vexed, as shown, beingheld to its rod by means ot a screw B, havinga rounded head, which isadapted to iit in the aperture B7 in the lower end of the nipple B3.

To the lower end of the iioat I attach a pipe D, the lower end of whichis screw-threaded to receive a detachable cap or cup D', which extendswithin the nipple E, having a screwthreaded engagement with the boss c3of the casting A, said nipple being provided with a detachable nozzleE', carrying 'a suitable valve E2.

F is a pipe adapted to be connected with the boiler to convey steamtherefrom to the steam and water chamber formed by the castings A A. Gis another pipe connecting the lower portion of the chamber with theboiler.

An apparatus constructed as above described, if properly connected witha boiler, the level of the water within the chamberwill be the same asthat within the boiler, and the float C will rise and fall with changesof the level, and-will carry with it the valve C3, so that said valvemay open or close the lateral passages of the upper coupling, wherebythe introduction of water within the chamber may beaccomplished.Suppose, for instance, that 'the boiler is to be supplied with waterfrom the pump, (not shown,) the water entering through G and the steamthrough the pipe F. Both coming from the boiler the pressure fromone'will counterbalance that of the other, and the float C will assume aposition sufficiently elevated to raise the valve C3, so as to close thetransverse passage of the upper coupling B. Now as the water-level,which under such circumstances would be substantially at the equatorialline of the chamber, begins to fall by reason of the fall of the waterin the chamber in the production of steam the float C and the valve C3,carried l by the stem of said float, also fall, opening the-passage ofthe upper coupling, which connects with the live-steam space of theboiler and withthe pump, thus permittingr the entrance of live steamthrough the nipple B3 and pipe B2 to the pump, which is operated bythesteam until the water-level is raised sui'ciently to elevate the floatand its valve and close the passage in the nipple B3.

The float is liable in time to accumulatev water which it is desirableto remove. To do this, it is only necessary to detach the nozzle E and`remove the cap D of the pipe D, when the Water within the oat willdrain'out, after which the cup may be replaced and the-nozzlethen'screwed on.

The concave seat for the convex valve Cs provides for ready seating ofthe valve should the stem thereof be any other than a direct Verticalline.

The valve C2 is used more as a safeguard to stop the flow of any waterthat might enter the coupling in the case of leakage or from othercauses.

l. The combination, with the chamber and its connections, of the float,a pipe connected with the lower end thereof, and a removable cap on thelower end of said pipe, substantially as and for the purpose speciied.

2. In a regulator, the combination, withthe chamber and its connections,of the nipple, the lower portion of the chamber, a drain-cock thereonextending through the nipple, and a removable cap on the lower end ofsaid pipe, substantially as and for the purpose specified.

In testimony whereof I affix my signature in

